CVE-2024-20147Network attack vector

Remote service interruption via Bluetooth firmware assertion

Published Feb 3, 2025 · Updated Feb 3, 2025

Reachable assertion in MediaTek Bluetooth firmware allows remote attackers to interrupt service via improper exception handling. The firmware's exception path allows remotely supplied input to reach an assertion instead of handling the exceptional condition safely; MediaTek does not identify the handler or input format. No privileges or user interaction are required, and the published impact is limited to service interruption rather than data access or code execution.

CVSS severity5.3
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reachable assertion in MediaTek Bluetooth firmware allows remote attackers to interrupt service via improper exception handling. The firmware's exception path allows remotely supplied input to reach an assertion instead of handling the exceptional condition safely; MediaTek does not identify the handler or input format. No privileges or user interaction are required, and the published impact is limited to service interruption rather than data access or code execution.

The record

CVE
CVE-2024-20147
Published
Feb 3, 2025
Updated
Feb 3, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-617, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 3, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 3, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-617Reachable Assertion
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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